GDB Remote protocol error codes

[Daniel Jacobowitz]

On Thu, Feb 12, 2009 at 03:18:41PM +0000, David Howells wrote:
> 
> Hi,
> 
> Is there a general scheme for error reply codes ('Exx') in the GDB remote
> protocol?  The documentation is unclear on this point.  _Some_ of the commands
> mandate an errno return, but not all, and from whose set of errnos?  And does
> this apply to all commands?
> 
> Can the gdb.info file be updated to make this more clear please?
> 
> I need to know this so that I can fix up the error returns made by the FRV
> arch gdbstub in the Linux kernel.

Fix up relative to what?  As Jeremy said, the numbers are mostly
ignored.

Jim added protocol support for more precise errors and verbose
messages a while ago, but no one's had the interest to define error
codes; also GDB needs work to not just discard them.

-- 
Daniel Jacobowitz
CodeSourcery